Lock-nut.



.1914. 1,1 1 0,957. Patented Sept. 15, 1914.

14 awm/wtz enrich.

ARDEE Masai-inn, or SHREVEPORT, Louisiana LOCK-NUT.

. State of Louisiana, have invented new and useful Improvements in Lock-Nuts, of which thefollowing is a specification.

The present invention relates to improvements in nutlocks, one ofthe objects being to provide an ordinary nut with a movable element which will frictionally contact with the threads of the bolt when either the nut or thebolt is moved in an unscrewing direction to prevent the accidental separation of the nut and bolt.

Another object of the invention is to provide one of the faces of an ordinary nut with a groove o'r recess which communicates with its bore, the rear wall ofthe said depression being inclined from one of its ends to its opposite end so that oneend of the said de pression is shallow and the other deep, a spherical member being arranged within the depression which when disposed within the deep. portion thereof contacts but does not interfere with the screwing of the 'nut upon the bolt, and which, by the said contact, will be; drawn toward the shallow portion of the channel when the nutis rotated backwardly to tightly engage with the threads of the bolt to prevent the rotation of the bolt in such direction.

e A still further object of the invention is the provision of a nut and a bolt, the nut having a depression or pocket, the rear wall of which is angular to provide the said pocket with a shallow end and acomparatively deep end, thedeeper portion of the channel beingof a size to receive a spherical member to retain the same in a line with l ,tion of the shallow end of thefpocket, the

Specification of Letters ratent.

Application filed. March 10, 1914.

Patented Sept. is, ieia. Serial 1%. 823,768.

cage also preventing the accidental removal of the sphere fromthe pocket.

W th the above and other ob]ects lniview,

the invention resides 1n the construction,

combination and arrangement of parts set rorth 1n the iollowing specification and fall ing within the scope of the appended claims.

In the drawings: Figure 1 is an elevation of a nut arranged upon a bolt, the nut being providedwith my improvement, Fig. 2 is a sectional view on the line 22 of Fig. 1, Fig. 3 is a sectional view on the line 33 of 1, Fig. 4; is a sectional view on the lined-41 of 2, Fig. 5 is a similar view on the line 5 5 of Fig. 1, and Fig. 6 is a detail perspective view of the cap or cage retaining the spherical member within the pocket in the nut. Referring now to the drawings in detail, the numeral 1 designates an ordinary bolt, andfZ an ordinary nut for the bolt. The nut 2 is formed with a depression 3 which is preferably arranged upon its outer face and which communicates with itsbore. The end walls 4 and 5 of the depression are preferably rounded and the rear wall 6 is inclined from the said rounded end walls, so that the depression, at its end 5, is comparatively deep while at its end l the depression is comparatively shallow.

The depression 8 is adapted to serve as a pocket for the reception ofa spherical mem her or ball 7 which is preferably constructed of some hardened metal, such as Harvey1zed or Krupp steel. The ball 7 when arranged at the deep end 5 of the pocket is in a position to belightly contacted by the threads of the bolt, the said contact being only sufiicient to revolve the ball within the rounded end of of the pocket, when the nut orbolt is rotated 111 a homeward screwing direction. When either the nut or bolt is rotated to separate the one from the other, the ball will be moved by the contact with the threads of the bolt towardthe shallow end 4- of the pocket, and as a consequence afford a tight engagement between the same and the rear wall of the pocket, to prevent the movement of the nut or bolt in such an unscrewing direction.

To retain'the ball 7 wit hin the pocket I employ a cap or cage 8 which includes a top plate 9 of a size sufficient to fully close the pocket, the said plate being provided with openings 10 adjacent its ends through which pass retaining elements ,11 which enter suitable openings provided therefor in the nut 2.

The top plate 9 has its inner edge arranged.

at the bore of the nut and rounded to conform with the shape of the said bore and the said edge at a suitable distance from-the ends of the plate is bent downwardly to provide an apron 12. This apron is of a length corresponding to the length of the pocket, but only sufliciently contacts with '14, and the said tongue is adapted to be disposed in the deep end of the pocket, a slot 15 being provided in the wall 5 of the pocket to receive the said tongue when the ball is arranged in the positionillustrated in Figs. 1, 3 and 4 of the drawings. This tongue is adapted to contact with the ball and project the samewithin the pocket toward the shallow end l thereof. The opening 13 provides a means whereby a pointed instrument may be inserted within the pocket to force the ball from the shallow end of the pocket toward the deep end thereof, such instrument being held in contact with the ball when it is desired to separate the nut from the bolt. The inner face of the nut is preferably formed with an annular depression which communicates withits bore, the said depres sion being indicated by the numeral 16 and being devised as a means for directing the threads of the bolt to the threaded bore of the nut.

From the above description, taken in connection with the accompanying drawings, the simplicity of the device, as well as the advantages thereof will, it is thought, be perfectly apparent to those skilled in the art to which such invention appertains without further detailed description.

Having thus described the inventioinwhat I claim is:

1. A bolt and a nut therefor, said nut having one of its faces formed witha pocket which communicates with its bore and which has an inclined rear wall to provide one of the ends of the pocket of a greater depth than'its opposite end, a spherical member within the pocket adapted to be contacted by the'thr-eads of the bolt to retain the same within the deep portion of the pocket when the nut is screwed in one direction upon the bolt, a plate arranged upon' the outer face and closing the pocket, said plate having a tongue arranged within the bore of the nut and contacting with the ball.

2. A bolt and a nut'therefor, said nut having one of its faces formed with a pocket which communicates with its bore and which has an inclined rear wall to provide one of the ends of the pocket ofa' greater "depth than at the opposite end, a'spherical member within the pocket and contacting'with the rear wall thereof, a. plate arranged over the pocket and upon the nut said plate having an apron arranged within the pocket at the bore of the nut-and contacting with the spherical member, and a spring arranged "within the pocket and adapted for projecting the spherical member from-the deeptoward the shallow end of the pocket and into frictional engagement with the threads of the bolt. t

3. A bolt and a nut therefor, said nut having one of its faces formed with a pocket which communicates with'its bore and which has an inclined rear wall to provide-one of the ends of the pocket of a greater depth than the depth of the opposite end, and a ball within the pocket and contacting with the rear wall thereof, a plate secured tothe' nut and closing the pocket, said plate having an inwardly extending apron which extends within the pocket in the bore of the nut and which engages with the ball 'to retain the ball. within the'pocltet, the plate being slitted to provide a'spring'tongue, the said tongue' being arranged withinthe pocket and adapt- 1 ed to contact with the ball to force the same from the deep end of the pocket toward the shallow end thereof,

4:. A bolt and a nut therefor, said nut havi ing a pocket which communicates with its bore, said pocket having incurved end walls,

one of which is of a greater width thanthe:

second wall and an inclinedrear wall connecting the end walls, the deeper endfof the pocket being formed with a notch, a spherical member within the pocket and engaging with the rear wall thereof, 'a plate having an inner curved edge secured to the nut and}.

closing the pocket, said'inner curved edge of the plate having an inwardly extending apron which isarrangedwithin thepo'cket at the bore of the nut and which contacts with'the spherical member to limit the move-j ment of the said member within the pocket, the said platefhaving an elongated opening, one of the end walls of which is formed'with an inturned spring tongue which is extended within the pocket and which rests within the notch in the deeper end of the pocket end and which isadapte'd to project the ball force the same into tight engagement the threads of the bolt. 1 i 5. In'combination with abolt and a nut therefor, said nut having a pocket which communicates With its bore, and a movable ment into engagement with the threads of lock arrangecl within the pocket,0f a plate the bolt. 10 secured to the nut over the pocket, said plate In testimony whereof I aflix my signature being constructed ofspring material and bein presence of two Witnesses.

ing slitted, and the portion of the metal ARDEE MoGEI-IEE. between the slits being bent to Within the Witnesses:

k pocket to provide a spring tongue which GEO. B. PINOHERA,

contacts with and projects the locking ele- H. G. FORD.

floplel of thin patent may be obtained for five cents eaeh, by addressing the Gomminioner o1 Plhlil,

1 1 Washington, D. G." 

